JPH01284641A - Method for repelling noxious insect - Google Patents

Abstract

PURPOSE:To obtain a good noxious insect repelling effect under a condition which adequately prevents both health hazard to a worker engaged in repelling and environmental contamination otherwise caused by a repellent by placing in soil a bar made of paper which contains the repellent and then breaking the bag. CONSTITUTION:A bag made of paper 2 which contains a repellent 1 is placed in part of soil for which a repelling effect is to be obtained from it. The bag 2 is then subjected to moisture or a physical impact so that is broken. This causes the insect repellent 1 contained in the bag 2 to be released into and brought into contact with soil, thus allowing repelling ingredients to penetrate into the soil.

Description

Detailed Description of the Invention (Purpose of the Invention) The present invention uses a pest control construction method to control termites and other pests that injure buildings (insect prevention, insecticidal, deworming, etc.) by a construction worker using a pest control agent. The aim is to obtain an effective pest control effect by performing the method under conditions that appropriately prevent both health damage and environmental pollution.

(Industrial application field) Technology to prevent termites from damaging buildings, and from invading and adhering to cockroaches and other unpleasant or harmful insects.

(Prior art) Various methods have been used for a long time to prevent the invasion and damage of termites, as well as the invasion and damage caused by cockroaches and bark beetles, to buildings. In recent years, further studies and experiments have been carried out.

In the case of termites, which is one of the most difficult control techniques,
Conventionally, as a method for anti-termite treatment of soil, methods of spraying a liquid agent on the soil area that requires treatment, or mixing or spraying a powder or granular agent have been widely used.

When performing termite prevention work on buildings, we take into consideration the ecology and habits of termites.
In addition to termite treatment for the soil, termite treatment for the wood is often required, and spraying or coating of a liquid on bundles, foundations, joists, baseboards close to the ground, and the lower parts of columns, etc. May be used together.

The construction method for preventing the intrusion or attachment of cockroaches and other unpleasant or harmful insects is almost the same as above, and for extermination, the same applies to areas that overlap with the pest control construction.

(Problems to be Solved by the Invention) The above-mentioned soil treatment to prevent termites and other harmful pests from invading and attaching is naturally effective in preventing the intrusion and attachment of these pests. There is a high possibility of causing damage to the health of the construction workers.

In other words, when spraying liquids or processing using powders or granules, there is a high possibility that fine particles of the pesticide (including mothballs, insecticides, anthelmintics, etc.) components may come into direct contact with workers. At the very least, it scatters into the air and irritates the eyes and respiratory mucous membranes of workers, causing poisoning symptoms such as headaches, dizziness, and vomiting, and injuries such as dermatitis.

In response to this, workers must wear safety and health protective equipment such as strong chemical-resistant goggles, masks, gloves, and work clothes during construction, and always work in an upwind position to avoid air pollution. Although ventilation should be taken into consideration by means of forced ventilation in areas where it is difficult for pesticides to flow, the reality is that it is difficult to improve the working environment, which is easily affected by pesticides.

Furthermore, it cannot be overlooked that not only does this pose a health hazard to workers as described in Section 2, but also that even a slight operational error can easily cause staining of the natural environment. Therefore, it is important to be careful not to splash the pesticide on garden trees, flowers, and ornamental fish in ponds near the work site, and also to prevent the liquid used from flowing into rivers, lakes, etc. from sewage. Extreme caution is required.

In pest control work, especially termite control work, in order to obtain the desired control effect, it is necessary to use a certain amount or more of a pest control agent in a location that corresponds to the ecology and habits of termites. However, accidents often occur due to the emergence of pests several years after treatment, and it is thought that most of these accidents are due to not applying chemicals in the right places and in the right amounts. One of the reasons why the appropriate amount of chemical treatment is not performed in the right place is that it is difficult to manage the amount of treatment chemical used for the construction site. In conventional construction methods, even if there are construction specifications or work instructions, it is not possible to measure each time, and the amount of treatment chemicals used is generally determined by the intuition of the worker. . Therefore, in conventional construction, while there are cases where the insect repellent is treated excessively, exceeding the prescribed amount, it is also inevitable that there will be incompletely treated areas where the prescribed amount is not reached.

"Structure of the Invention" (Means for Solving the Problems) (1) A paper bag coated with a pesticidal agent is placed in the soil area where the pesticidal effect is to be obtained, and then the bag is coated with a pesticidal agent. 17. A pest control construction method characterized in that the insect repellent contained in the bag is brought into open contact with the soil to allow the insect repellent component to penetrate into the soil.

(2) Continuously lay the pest control agent contained in a cylindrical paper bag in the trench formed surrounding the foundation of the building, then backfill the trench and use water contained in the soil or watering. 2. The pest control construction method according to item 1, wherein the bag is damaged by a physical impact such as moisture or tread pressure applied as appropriate by means of, for example, or penetration by a stick or a sharp object.

(3) Continuously lay the pest control agent contained in a flat paper bag on the soil surface under the floor of the building, cover the bag with soil or sand as necessary, and then close the bag. 2. The pest control construction method according to item 1, wherein the bag body is damaged by water contained in the soil, moisture extracted as appropriate by watering, tread pressure, or physical impact such as puncture with a stick or sharp object.

(Function) By storing the pest control agent in a paper bag, it is possible to prevent the pesticide from scattering or from adhering to the human body or other surfaces, causing stains when the pesticide is being loaded or applied to the soil. do.

In addition, each bag manufactured and sealed in a factory contains a certain amount of insecticide and has a certain packaging shape, so when applying, it is possible to control the amount of agent used per unit length or unit area. You can easily and accurately know. In other words, being able to easily check the application status means ensuring controlled construction using a prescribed amount of chemicals that are adapted to the effects specified in the specifications or work instructions.

If the paper bag has a water-soluble property, the bag can be destroyed more quickly and accurately by pouring water or other moisture without requiring special operations. . Even if the paper bag is made of ordinary paper, it can be easily damaged by stepping on it after laying it down (stepping pressure). The same applies to other cases, and for example, it can be easily damaged by stepping on it with rubber boots or the like. In addition, a light beating process using a rammer or the like may be added, or a general rod-shaped object,
In some cases, it is natural that the tip can be appropriately sharpened and damaged by being inserted with a needle insert, and since it is made of paper, it can be easily damaged by applying a mild physical impact. Of course, one or more of the above-mentioned water sprinkling and such external impact can be used in combination.

As mentioned above, the pesticidal agent contained in the bag is applied to soil or the soil surface while it is contained in the bag, and then released from the bag due to damage to the bag and its effectiveness is applied to the soil it comes in contact with. It allows the ingredients to penetrate and shows a reasonable control effect.

(Example) Specific embodiments of the present invention will be described with reference to drawings as appropriate.

In the above description, the form of the drug used as a control agent for termites or other harmful or harmful insects is the active substance itself such as organophosphorus insecticide, carbamate insecticide, or various other insecticides, or silica gel or other insecticides. This includes those in which the above-mentioned raw materials are spread on porous particles such as zeolite as a medium, or those in which they are mixed with other media.

In the present invention, such insect repellent and other repellent agents are housed in a paper bag, and this paper is made of plain paper or water-soluble paper. The shape of the bag may be a cylindrical brown bag, a sausage, or a cylindrical or flat bag having a predetermined thickness such as a semicylindrical shape.

If the pest control agent is manufactured and filled into the bag under sufficient manufacturing control, no matter what form the drug is in, as mentioned above, it will contain the specified formulation. The pesticidal efficacy is always constant, and therefore the pesticidal efficacy per unit amount of the pesticidal agent housed in the same type of paper bag is always uniform.

Furthermore, the paper bag is prepared by being made of a hard material and having a constant size and shape, and the paper bag is filled with a predetermined amount of the insecticide and sealed. That is, to be more specific, the bag containing the pest control agent is filled and sealed after the amount to be filled in the bag and the shape and dimensions of the bag are determined based on the effectiveness of the manufactured pest control agent. . Therefore, during construction, the number of filling bags automatically determined according to the area or length of construction is applied, so that rational, accurate, and uniform construction can always be achieved. In addition, since there is no wear and tear due to scattering or adhesion resistance during loading and unloading of the filled bag, or damage to the bag during application, the insect repellent can be applied in the absolute required amount without fail.

The specific construction mode using the above-mentioned cylindrical paper bag is the first one.
As shown in the figure, it is laid inside the foundation 10 of the building and surrounding the bundle stones 11, and if necessary, it is laid outside the foundation. That is, as shown in FIG. 2, a groove 3 is formed in the area along the foundation 10 or the pile stones 11, and the bag 2 filled with the pest control agent 1 is placed in the groove 3. , laid continuously in the length direction,
Cover it with a thin layer of soil.

When constructing a new building, various construction workers still have to enter the foundation 10 and carry out their respective operations to cover the laying bag 2 with soil even after implementing the method of the present invention. In such cases, it is extremely effective in preventing those workers from coming into contact with drug components. However, in cases where there is no need for such workers to enter the area after the pest control work has been carried out, it goes without saying that covering with earth and sand is not essential.

In addition, the illustrated embodiment described above shows that the pest control is carried out on the inside of the foundation 10. This means that especially in the case of humidity-loving pests such as termites, the area with high humidity is under the floor, and the pest control is carried out outside the foundation. This indicates the construction condition that takes into consideration the possibility that if the construction is done, it will run off during rain and cause environmental pollution, but if there is no need to take such consideration, In the case of insufficient conditions such as sunlight and ventilation, it may be carried out on the outside of the foundation 10 as appropriate.

In any case, after laying the area as described above, water is appropriately poured into the area using a spray or water spray. The water drawn out by pouring water weakens or dissolves the paper forming the bag, damaging the bag. Of course, this construction work, which is carried out around the foundation of a building, is in the early stages of construction work, so if it is determined that the soil in the area where the bag will be installed has sufficient water content to damage the bag, or if there is any damage caused by treading pressure or other physical Water injection may be omitted if damage occurs due to physical impact. Depending on the situation, it may be damaged by applying a physical impact with a stick or the like, as mentioned above.

When the bag is damaged, the pesticidal agent contained therein is released from the bag and comes into direct contact with the soil, causing the pesticidal component to permeate into the soil.

As described above, the pest control agent 1 housed in the bag body 2 is prevented from coming into contact with the human body during the installation work as described above, and it is possible to effectively prevent the pest control agent from coming into contact with the human body as well as from scattering. At the same time, there is no possibility of the bag being resistant to adhesion to the construction equipment, so it is no longer necessary to wear heavy protective equipment used in conventional pest control work, and measures against environmental pollution are substantially reduced. It is clear that In addition, by continuously laying the materials contained in standardized bags at the designated construction site, the specified amount can be applied in a complete state, and the construction can be performed with just the right amount in the right place. I can do it.

As mentioned above, the bag 2 is designed to be damaged by rupture or melting when it comes into contact with moisture or is subjected to an external impact, and therefore tends to be inferior in strength. In order to prevent damage to the insecticide 1, it is desirable to transport and handle the plurality of bags 2 containing the insecticide 1 in a packaging bag having the required strength.

Another embodiment according to the invention is shown in FIG. That is, the one shown in FIG. 1.2 uses a cylindrical bag 2, whereas the one shown in FIG. 3 uses a flat bag 5, and as described above, In the case of a new building, the bag 5' is covered with soil or sand to a thickness of about 1 to 3 cm, and then water is poured as appropriate. is the first
．． This is the same as in Figure 2. The thickness of the flat bag filled with the insecticide is about 1 to 5 cm. A specific construction example according to the present invention will be described below.

Construction example 1゜As shown in Fig. 1, along the inside of the building's outer foundation 10, on both sides of the partition foundation 11, and around the bundle stones 12, a depth of approximately 10 cm (9~I O, 5 cm>) and a width of approximately 10cm
Dig a groove 3 (9.5 to I1 cm), and continuously lay cylindrical water-soluble paper bags with a diameter of 5 cm and a length of 50 cm filled with a termite insect repellent in this groove, and place soil in the groove. After backfilling, water was poured into the area at a rate of 1 (!/m).

One hour after construction was completed, the bag was dug up and the application bag was observed, and it was found that the water-soluble paper bag had melted and burst, and the insect repellent contained in the bag was in sufficient contact with the soil.

The insect repellent for termites is made into granules by spreading the organic phosphorus insecticide phoxim (chemical name: 0.0-diethyl-〇-(α-cyanobenzylideneamino) thiophosphate) on spherical zeolite with a diameter of 3 mm. I used something. The blending ratio of phoxim drug substance and granular zeolite was calculated based on the effective value of phoxim drug substance (table) from conventional experiments and the workability of processing performed by filling the bag. That is, a cylindrical bag for testing (5 cm in diameter, 5 cm in length)
0 cm, volume 981 cJ) granules filled in 600 g,
The amount of inner boxyrogen was 2.5 g. Two types of flat bags were used for the test: one with a length of 5Qcm and a width of 30cm, and one with a length of 30cm and a width of 25cm. The container was filled with granules weighing 3.75 g.

During construction according to the present invention, the work involves using insect repellent filled in paper bags, so strong chemical-resistant goggles, masks, and gloves are not worn, and safety and hygiene protective equipment is not worn. I was able to keep it to the minimum necessary level and carry it out easily.

The first floor floor area of the building where test construction was carried out is 66.25 m'
The total number of cylindrical bags containing the insect repellent applied inside the outside foundation, on both sides of the partition foundation, and around the pile stones was 225.
The total amount of wood and granules used was 135 kg.

In addition, as a comparative example, the conventional mixing method (digging a trench at the construction site, mixing the soil with granules or powder, and backfilling) is used in a building with the same area as the test construction. Construction method), it was constructed inside the outer foundation, on both sides of the partition foundation, and around the bundled stones. The total amount of granules used was 135 kg, which is the same as the amount used in the test construction. Although the construction of this comparative example was carried out while wearing complete safety and hygiene protection equipment, the workers complained of more eye irritation and odor than during the bag construction work. Even with further precautions, it was not possible to completely prevent insect repellent particles from scattering from the work site to the surrounding area.

Construction Example 2゜As shown in Figure 3, flat water-soluble paper bags measuring 30 cm long and 50 cm wide filled with the same granules used in Construction Example 1 were placed on the soil surface all over the inside of the outside foundation of a building. After that, a sand layer with an average thickness of 2 cm was formed with sand, and then 0.5 #/rrf of water was sprayed from above. The granules filled in the first flat bag (length 50 cm, width 30 cm) and second flat bag (length 30 cm, width 25 cm) for testing were 1 kg in the first flat bag and 1 kg in the second flat bag. 5
00g, the number of flat bags applied was 311 bags for the first flat bag, 91 bags for the second flat bag - the total amount of granules used was 356.
It was 5 kg.

In addition, in Construction Example 2, as in the case of Construction Example 1, as a comparative example, we applied the conventional spraying method (granules or powders were applied to a building with the same area as the test construction) without storing the granules in a bag. It was applied to the entire surface of the soil on the inside of the outer foundation using a construction method in which it is evenly spread over the soil surface. The total amount of granules used was 356.5 kg, which is equal to the amount used in the test construction. During the construction of this comparative example, full sanitary protective gear was worn.

Two years have passed since the test construction, and no termite damage has been observed in any of Construction Example 1 and its comparative example, and Construction Example 2 and its comparative example.

Note that these examples use zeolite, but if water absorption (hygroscopicity) is important, it is preferable to use silica gel, which absorbs moisture during humid periods and gradually releases it during dry periods. A moisturizing effect is required.

"Effects of the Invention" As explained above, if the present invention is used to control termites and other regeneration in wooden buildings, steel prefabricated buildings, or buildings using frame wall construction method, and in particular preventive measures are taken, the control effect that is the original purpose of the construction can be achieved. It is significantly safer than conventional construction methods in that it can achieve this and properly prevent health damage to the construction workers and environmental pollution caused by insect repellents. It is a construction method,
Therefore, this invention is industrially highly effective.

[Brief explanation of the drawing]

The drawings illustrate the technical content of the present invention. Fig. 1 is a slope view showing the installed state of the insect repellent storage cylindrical bag according to the present invention, Fig. 2 is a sectional view of the installed part, and Fig. 3 shows the installed state of the insect repellent storage flat bag according to the present invention. It is a slope view. In these drawings, ■ indicates an insect repellent, 2 and 5 are paper bags, 3 is a groove, 10 is a foundation (outside foundation and partition foundation), and 11 is a pile of stones.

Claims (3)

[Claims] (1) A paper bag containing a pest control agent is placed in the soil area where the pest control effect is to be obtained, and then the bag is damaged by applying moisture or physical impact. A pest control construction method characterized by bringing an insect repellent contained in a container into open contact with the soil to allow the insect repellent component to penetrate into the soil. (2) Continuously lay the pest control agent contained in a cylindrical paper bag in the trench formed surrounding the foundation of the building, then backfill the trench and use water contained in the soil or watering. 2. The pest control construction method according to item 1, wherein the bag is damaged by a physical impact such as moisture or tread pressure applied as appropriate by means of, for example, or penetration by a stick or a sharp object. (3) Continuously lay the pest control agent contained in a flat paper bag on the soil surface under the floor of the building, cover the bag with soil or sand as necessary, and then place the bag in contact with the soil. 2. The pest control construction method according to item 1, wherein the bag body is damaged by moisture contained in the soil or moisture appropriately applied by watering, tread pressure, or physical impact such as puncturing with a stick or sharp object.